Claim Missing Document
Check
Articles

Found 17 Documents
Search

Nutrient Limiting Factor for Enabling Algae Growth of Rawapening Lake, Indonesia Piranti, Agatha Sih; Rahayu, Diana Retna Utarini Suci; Waluyo, Gentur
Biosaintifika: Journal of Biology & Biology Education Vol 10, No 1 (2018): April 2018
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v10i1.12500

Abstract

Two important issues for establishment of nutrient criteria are identifying which nutrient limits algal growth and determining the concentration of that nutrient enabling nuisance growths. The purposes of this research were: 1) to examine the nutrient (TN, TP, ratio of TN/TP) dynamic in Rawapening Lake spatially and temporally, 2) to identify Nutrient Limiting of Algal Growth in Rawapening Lake, and 2) to determine the nutrient criteria for enabling algae growth in Rawapening Lake. The research was conducted using a survey method in 7 sites from February to August 2016. The result showed that spatially Total Nitrogen (TN) and Total Phosphor (TP) in the lake were not evenly distributed and temporally influenced by the inflow. The development of algae biomass in Rawapening Lake determined ratio of TN/TP. Nutrient criteria as follow: oligotrophic was 5.96 - 14.39, mesotrophic was 14.39 - 42.15, eutrophic 42.15 - 51.65, and hyper-eutrophic > 51.65. These criteria could be used in designing controlling eutrophication problem by arranging nutrient input from both external and internal sources in order to meet those limit. The benefits of research contributes to the development of environmental monitoring methods to assess the trophic status using more appropriate in accordance with the conditions of the tropics region. It also could be used for consideration in policy direction and orientation of land use in catchment areas in relation to water quality of the lake.
Acute Respiratory Infection Among Brick Kiln Worker in Banjarnegara, Indonesia and Its Related Factors Setyo widodo; Siwi Pramatama Mars Wijayanti; Agatha Sih Piranti
Insights in Public Health Journal Vol 1 No 2 (2020): Insights in Public Health Journal
Publisher : Public Health Department, Faculty of Health Sciences, Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.iphj.2020.1.2.3737

Abstract

Background Occupational risk factors are one of the primary causes of acute respiratory infection (ARI). The high incidence of ARI in Banjarnegara Regency due to the process of bricks manufacturing is needed for further investigation. Objectives: This study aims to analyze risk factors such as air quality, tenure, smoking habits, the use of masks, knowledge of ARI incidence. Methods: This is an analytic study with a cross-sectional design. 342 of brick workers in three villages in Banjarnegara Regency were involved in this study. Air quality examination on dust particles, temperature, humidity, smoke, and air germ numbers was carried out in 15 of the brick kiln. Data about the duration of work, smoking habits, knowledge of ARI, and the use of masks were obtained by a structured questionnaire. Results: This study highlighted that the duration of work was the most influential variable in ARI incidence. Smoking habits and the use of personal protective equipment (mask) while working also correlated with ARI. Conclusion: This study suggested the regular use of a face mask while working to prevent the workers from dangerous pollutants. Periodic medical check-ups for workers and health education are also important prevention to be carried out to reduce ARI incidence.
DIVERSIVIKASI HASIL OLAHAN IKAN LELE DI DESA KALIWANGI KECAMATAN PURWOJATI KABUPATEN BANYUMAS Diana Retna Utarini Suci Rahayu; Agatha Sih Piranti; Idha Sihwaningrum
Dinamika Journal : Pengabdian Masyarakat Vol 1, No 1 (2019)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dj.2019.1.1.602

Abstract

AbstrakKetahanan pangan merupakan salah satu faktor penentu kesejahteraan masyarakat khususnya di pedesaan. Upaya untuk mencapai kondisi tersebut perlu adanya kerjasama antar berbagai elemen, salah satunya peran perguruan tinggi melalui kegiatan pengabdian masyarakat. IPTEKS tentang diversifikasi hasil olahan ikan lele, telah dilakukan di Desa Kaliwangi Kecamatan Purwojati Kabupaten Banyumas. Kegiatan tersebut bertujuan untuk 1) meningkatkan pengetahuan dan kemampuan ibu-ibu anggota PKK dan para remaja putri Desa Kaliwangi dalam mengolah makanan yang bersumber dari bahan baku yang sama menjadi beberapa tampilan yang berbeda; 2) memberikan ketrampilan dalam penanganan pasca panen, khususnya pengolahan ikan lele menjadi bahan olahan siap saji yang sehat, bergizi, praktis serta ekonomis; 3)  memberikan ketrampilan kreatif pada ibu-ibu anggota PKK dan para remaja putri dalam membuat nugget dan kaki naga lele; 4) memberikan ketrampilan dalam pengemasan produk olahan ikan (khususnya pembuatan nugget dan kaki naga). Metode yang digunakan meliputi pembekalan materi melalui penyuluhan/ceramah, praktek dan demostrasi plot (demplot), selanjutnya dilakukan monitoring dan evaluasi. Selama kegiatan praktek dilakukan pendampingan untuk membantu khalayak sasaran menghasilkan produk yang bagus. Hasil evaluasi menunjukkan adanya peningkatan pengetahuan, pemahaman dan ketrampilan di dalam mengolah ikan lele sebagai produk olahan baru berupa nugget dan kaki naga yang disukai dan bermanfaat bagi kesehatan serta dapat digunakan sebagai salah satu peluang usaha.Keywords: Desa Kaliwangi, diversivikasi, ikan lele, nugget, pengolahan
TRANSFER TEKNOLOGI PEMBUATAN PELLET ORGANIK UNTUK PAKAN IKAN Agatha Sih Piranti; Diana RUS Rahayu; Gentur Waluyo
Dinamika Journal : Pengabdian Masyarakat Vol 2, No 2 (2020)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dj.2020.2.2.904

Abstract

Pakan merupakan salah satu faktor utama yang harus diperhatikan mengingat dalam kurun waktu produksi, kontribusi pakan dapat mencapai 60% dari total biaya produksi. Dengan meningkatnya harga bahan baku pakan akan menyebabkan biaya produksi meningkat hal ini dapat menurunkan tingkat keuntungan bagi petani ikan. Sehubungan dengan hal tersebut maka telah dilakukan alih teknologi untuk memberikan pemahaman dan ketrampilan kepada petani ikan di Desa Pasir kulon Kecamatan Karang lewas untuk memproduksi pellet organik dengan bahan baku tanaman eceng gondok dan cacing tanah. Pendekatan metode yang dilakukan dalam kegiatan ini menggunakan metode PRA (Partisipatory Rural Appraisal) yang meliputi pembekalan teori, praktek, demonstrasi plot dan selanjutnya dilakukan monitoring dan evaluasi. Proses produksi dimulai dengan pemilihan bahan baku yang berkualitas, penyusunan komponen bahan baku sesuai jenis ikan yang dituju, penghitungan kebutuhan bahan baku yang akan digunakan, pembuatan pellet. Hasil evaluasi teori dan ketrampilan peserta kegiatan menunjukkan adanya peningkatan pemahaman dan ketrampilan peserta (petani ikan) terhadap kemampuan dalam melakukan produksi pakan buatan sendiri. Hasil evaluasi dampak menunjukkan adanya perubahan perilaku dan pola pikir peserta. Kata kunci : pellet organik, eceng gondok, cacing tanah. AbstractFeed is one of the main factors that must be considered considering that in the production period, the contribution of feed can reach 60% of the total production cost. Increasing the price of feed raw materials will cause increased production costs, this can reduce the level of profit for fish farmers. In connection with this matter, transfer of technology has been carried out to provide understanding and skills to fish farmers in Pasir Kulon Village, Karang Lewas District to produce organic pellets with raw materials for water hyacinth and earthworms. The method approach taken in this activity uses the PRA (Participatory Rural Appraisal) method which includes provisioning theory, practice, demonstration plots and subsequently monitoring and evaluation. The production process begins with the selection of quality raw materials, preparation of components of raw materials according to the intended fish species, calculation of raw material requirements to be used, pellet making, and packaging, and also application to cultured fish. The results of the evaluation of the theory and skills of the activity participants showed an increase in the understanding and skills of the participants (fish farmers) on the ability to produce homemade food. The results of the impact evaluation indicate changes in the behavior and mindset of the participants. Keywords: organic pellets, water hyacinth, earthworms.
The Utilization of Aquatic Weeds as Biomonitoring Agent for Trophic Status of Water Reservoir Ecosystem Dwi Nugroho Wibowo; Agatha Sih Piranti
Jurnal Agrista Vol 11, No 1 (2007): Volume 11 Nomor 1 April 2007
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (733.887 KB)

Abstract

ABSTRACT. An ecological study of aquatic weed for biomonitoring trophic status of water reservoir system was conducted in Rawa Pening Water Reservoir, Ambarawa, Semarang Regency. This research was conducted from February to October 2006. Variables of study were taken from nine selected observation stations representing upstream, middle, and downstream both in wet season and dry season. The study was aimed to investigate the diversity of aquatic weed in Rawa Pening Water Reservoir at the three zones in both season in order to obtain bioindicator for trophic status of water reservoir ecosystem. The analysis on community structure of aquatic weed was carried out by describing data on the diversity of aquatic weed species. The similarity of aquatic weed characteristics among zones was analyzed on the basis of average similarity dendogram. The variation of water quality and aquatic weed characteristics among stations was analyzed using multivariate analysis based on the analysis of main component, while spatial distribution of aquatic weed was analyzed using correspondence factorial analysis. Based on the variation of characteristics of water quality, Rawa Pening Water Reservoir belongs to eutrophic status. Low diversity of aquatic weed in Rawa Pening Water Reservoir both in wet season and dry season (12 species) was observed. The dominant species in both season were Eichhornia crassipes and Salvinia natans. Other species found were Hydrilla verticillata, Pistia stratiotes, Chara sp., Nitella sp., Ipomoea aquatic, Cyperus cephalotes, C. pilosus, Alternanthera philoxeroides, Nymphoides indica, and Sacciolepis interrupta. Both in wet season and dry season, spatial distribution on the basis of aquatic macrophyte weed was evenly distributed and had grouping pattern of sufficienly high similarity ( 70%). The group tended to be dominated by E. crassipes and S. natans.
INPUT OF NUTRIENT (NITROGEN AND PHOSPHORUS) FROM THE CATCHMENT AREA INTO RAWAPENING LAKE OF CENTRAL JAVA Agatha Sih Piranti; Diana RUS Rahayu; Gentur Waluyo
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Nutrients (Nitrogen and Phosphorus) enter the waters in dissolved form or in sediment particles that reflect to condition of landuse activities that occur in the catchment area. This condition will determine the quality of the water and the lake productivity or trophic status. The purposes of this study were to assess how much nutrients input (N and P) that goes to Rawapening Lake and assess the biological response induced by lake. The observations was done by 4 times (2 times in the rainy season and 2 times in the dry season) in 9 of the river into the lake (River of Rengas, Panjang, Torong, Galeh, Parat, Legi, Muncul, Sraten, Kedungringin, Tuntang) as well as in 12 loc ations in the lake waters: area of Brebesan, Tourism of “Bukit Cinta”, Spring area, net cage 1, net cage 2, Kedungringin River estuary, and the outlet. The results showed that the TN input was up to 154,62 mg/sec and TP was up to 10,32 mg/sec. The Rawapening Lake had a deficit of TP up to 64.9% and TN up to 67.25%. It could be concluded that Rawapening lake had an acting as a sink and further it could served as a source of nutrients that lead to eutrophication condition.
RELATIONSHIP BETWEEN WATER QUALITY AND ABUNDANCE OF CYANOPHYTA IN PENJALIN RESERVOIR Badrun Mahera Agung; Agatha Sih Piranti; Carmudi Carmudi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Cyanophyta (blue green algae) is one of the divisions of phytoplankton, microscopic aquatic organisms that some of them is harmful because secrete toxins and cause blooming so polluted waters. The purpose of this study was to determine the water quality in the Penjalin Reservoir in terms of physical and chemical parameters, determine abundance of Cyanophyta in Penjalin Reservoir, as well as determine the relationship between water quality with an abundance of Cyanophyta in order to control the blooming of Cyanophyta in Penjalin Reservoir. The method applied in this research is survey. The analytical method used to determine the water quality is descriptive method with table. Abundance of Cyanophyta were analyzed qualitatively and quantitatively. The relationship between physics and chemistry waters with an abundance of Cyanophyta were analyzed using correlation analysis. The results of the research in the waters of the Penjalin Reservoir obtained 25 species of Cyanophyta abundance ranged from 838.16 to 1322.77 ind.l-1, with the highest species abundance owned by Microcystis sp. Diversity index values ranged from 0.7 to 2.15 indicate that the diversity of Cyanophyta is classified, and the dominance index value of 0.009 to 0.29 indicates that no species dominates. Cyanophyta abundance in the waters of the Penjalin Reservoir 37,89% influenced by parameter TDS and Total P (r = 0,501) with equation Y = -701,5 + 33,4 (TDS) + 919,7 (Total P). Water quality in Penjalin Reservoir still within the range of good and decent for the life of organisms present in the reservoir.
EVALUASI STATUS MUTU AIR DANAU RAWAPENING Agatha Sih Piranti; Diana Retna Utarini Suci Rahayu; Gentur Waluyo
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 8 No. 2 (2018): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.8.2.151-160

Abstract

Increasing type and number of human activities will impact on decreasing quality of water. Therefore, it is necessary to determine the water quality status of Rawapening Lake regularly to ensure that the water quality remains in its natural condition. The purposes of this study were to evaluate the water quality status and class of Rawapening Lake. The survey was done in the lake during dry season for 3 months (July to September 2016). Water sampling conducted in seven locations. The measured variables were all parameters as specified in Government Regulation No. 82 of 2001. To determine the water quality status was using storet methods. Determination of the water class was by comparing the concentration of all parameters with the  standard. Observations indicated that the Rawapening Lake water quality status was in heavily polluted. There were eight parameters exceeding the standard i.e. TSS, BOD, COD, total phosphor and total coliform, Cd and Pb, and H2S. Therefore, it is necessary to decrease them through activities such as not throwing rubbish into the lake, lifting biomass of water hyacinth, picking up peat soil sediments, using environmentally friendly fuels, reducing fertilizers and pellet, reforesting critical lands, limiting mining activities, banning waste disposal directly to rivers.
Hubungan Kualitas Air Denagn Kelimpahan Fitoplankton Di Segara Anakan Bagian Timur Cilacap Jawa Tengah Hasby Ghoni Asiddiqi; Agatha Sih Piranti; Erwin Ardli Riyanto
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 1 No 2 (2019): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.624 KB) | DOI: 10.20884/1.bioe.2019.1.2.1761

Abstract

Phytoplankton is the primary producer whose existence depends not only on the nutrient. The eastern part of Segara Anakan waters experienced changes where the decline in quality which received input from organic and inorganic wastes and residential, industrial and factory wastes of Holcim and Pertamina factories. The purpose of this research is to study the water quality and to study the relationship between water quality and abundance of phytoplankton at the eastern part of Segara Anakan. The result showed that Water quality in Segara Anakan waters in the eastern part of Cilacap consists of several parameters that beyond the quality standards according to the Keputusan Menteri Lingkungan Hidup No. 51 of 2004 such as pH, Nitrate, Ammonia, Phosphate, and TSS. Water temperature is a physical factor which has a strong negative correlation with the abundance of phytoplankton, followed by TSS as a physical factor which has a positive correlation. The chemical factor which has a positive correlation with abundance are TDS, Nitrite and pH, followed by Phosphate, Salinity, Ammonia, and Nitrate which has a negative correlation with the abundance of phytoplankton. Key Words: Environmental factor, phytoplankton, Segara Anakan, Spatial variation, temporal variation.
Struktur Komunitas Fitoplanton di Waduk Cacaban Kabupaten Tegal Dian Setyowati; Diana Retna Utarini Suci Rahayu; Agatha Sih Piranti
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 3 No 3 (2021): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2021.3.3.4247

Abstract

Phytoplankton has an important role in an aquatic ecosystem because it is autotrophic and also a source of natural food for fish. Phytoplankton will interact with other biotic factors to form a community structure that is useful for the sustainability of the ecosystem Therefore, this research is needed to determine the phytoplankton community structure in Cacaban Reservoir because the community structure can shows the water conditions. The purpose of this reserch was to determine the composition, abundance, and diversity of phytoplankton at each station and the most dominant type of phytoplankton in Cacaban Reservoir. The result showed that there are 18 species of phytoplankton in Cacaban Reservoir. The four phytoplankton divisions found were Chlorophyta with 8 species, Bacillariophyta with 5 species, Cyanophyta with 3 species, and Charophyta with 2 species. The abundance is in the medium category, with the abundance of Chlorella sp. the highest at stations I, III and IV; and Microcystis sp. at stations II and V. The diversity index ranges between 1,227-1,766 and was in the low category which indicates low community stability. The dominance index range between 0,648-0,791 and was in the high category. The dominant phytoplankton in the Cacaban Reservoir is from the Chlorophyta division, which is also a type favored by fish.